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Magnetic coil of magnetic field generator for heating magnetic material in biological organism

A magnetic field generator and biological tissue technology, applied in the direction of using the magnetic field generated by the coil, coil, electromagnet, etc., can solve the problems of large loss power, problem of magnetic coil cooling, large power loss, etc., and achieve simple forming and low cost. The effect of fees

Inactive Publication Date: 2002-10-02
MFH控制体温系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cooling of the magnetic coils is problematic because there is a particularly high power loss, calculated on a volume basis, which is greater than in ferrite components

Method used

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  • Magnetic coil of magnetic field generator for heating magnetic material in biological organism
  • Magnetic coil of magnetic field generator for heating magnetic material in biological organism
  • Magnetic coil of magnetic field generator for heating magnetic material in biological organism

Examples

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Embodiment Construction

[0033] FIG. 1 schematically shows a magnetic field generator 1 for heating, in which a body placed in which magnetic or magnetizable materials or solid bodies can be placed can be irradiated. In particular tumor sites in the human body are suitable as sites to be placed in fields in which, for example, magnetic nanoparticles are placed and the tumor sites can be heated to temperature values ​​preferably above about 41°C.

[0034] The magnetic field generator 1 comprises a magnetic yoke 2 which is designed as a tripod in an M-shape and has two spaced apart parallel vertical yoke parts 3, 4 and two transverse yoke parts 5 connected therebetween 6.

[0035] The structural unit consisting of the lower Yoke part 6 and the associated lower pole shoe 8 with the lower coil box 10 is installed in a stationary manner. Opposite it, a gate formed by the two vertical yoke parts 3, 4, the upper yoke part 5 connecting them and the pole shoe 7 with the upper coil box 9 assigned to it can be ...

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Abstract

The invention relates to a magnetic coil structure of a magnetic field generator for heating magnetic or magnetizable materials or solids in biological tissues. It has a coolable magnetic yoke (2) and two mutually opposite magnetic yoke (2). , pole pieces (7, 8) separated by a field forming gap (12), wherein in order to generate an alternating magnetic field, two magnetic coils (22) respectively assigned to one pole piece (7, 8) are designed to have The disk coils of the spirally advancing coil windings, and the pole shoe ends of the respective pole shoes (7, 8) are annularly surrounded by a magnetic coil / pole shoe gap (57) that runs between them. According to the invention, the magnetic coils (22) are respectively installed in a coil box annularly surrounded by corresponding pole pieces (7, 8), and the coil box (9, 10) has at least one cold air outlet for connecting to the cold air pump. - inlet holes (51, 52, 53) and at least one cold air-outlet hole (57, 66).

Description

technical field [0001] The invention relates to a magnetic coil structure of a magnetic field generator for heating magnetic or magnetizable materials or solids in biological tissue. technical background [0002] Under the current method, cancer is diagnosed and treated by means of warming method, in which cancer tissue is heated to a temperature of about 41°C-46°C to be irreversibly damaged. [0003] In the known heating method for tumor therapy (WO97 / 43005) magnetisable microcapsules are used which reach the tumor area via the blood stream. These microcapsules are treated with an alternating magnetic field generated outside the patient's body, which generates heat that warms in the microcapsules due to the hysteresis effect. To form the magnetic field, a linear alternating magnetic field is used with a frequency in the range of 10 KHz to 500 KHz. The microcapsules should contain highly magnetizable materials, so that the alternating magnetic field...

Claims

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Application Information

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IPC IPC(8): A61N2/00A61N1/40A61N2/02A61N2/04A61N2/10
CPCA61N1/406A61N2/02
Inventor 彼得·福伊希特
Owner MFH控制体温系统有限公司
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